Legal claims defining the scope of protection. Each claim is shown in both the original legal language and a plain English translation.
1. A bus interface system, comprising: a one-wire bus line; a master bus controller coupled to the one-wire bus line, the master bus controller is configured to generate a first input data signal and to transmit the first input data signal along the one-wire bus line; and a slave bus controller coupled to the one-wire bus line so as to receive the first input data signal from the master bus controller, wherein the slave bus controller comprises power conversion circuitry configured to convert the first input data signal into a first supply voltage and to regulate the first supply voltage with a charge current, wherein the power conversion circuitry is operable to generate the charge current from the first input data signal.
A bus interface system operates in a one-wire communication environment, addressing the challenge of powering slave devices while maintaining data transmission efficiency. The system includes a one-wire bus line connecting a master bus controller and one or more slave bus controllers. The master bus controller generates and transmits an input data signal along the bus line. Each slave bus controller receives this signal and includes power conversion circuitry that converts the input data signal into a supply voltage. The circuitry regulates this voltage using a charge current derived from the same input data signal, eliminating the need for separate power lines. This design simplifies wiring, reduces component count, and ensures reliable power delivery to slave devices while maintaining data integrity. The system is particularly useful in applications where space and power efficiency are critical, such as embedded systems, sensor networks, and low-power electronic devices. The power conversion circuitry dynamically adjusts the charge current to accommodate varying signal conditions, ensuring stable operation across different environmental and operational scenarios.
2. The bus interface system of claim 1 wherein the power conversion circuitry comprises: a power converter coupled to the one-wire bus line, wherein the power converter is configured to convert the first input data signal into the first supply voltage; and a switching regulator coupled to the one-wire bus line, wherein the switching regulator is configured to regulate the first supply voltage with the charge current and is switchable so as to generate the charge current from the first input data signal.
A bus interface system is designed to manage power and data communication over a one-wire bus line, addressing challenges in efficient power delivery and data transmission in low-power or embedded systems. The system includes power conversion circuitry that converts an input data signal into a supply voltage and regulates it to provide a stable charge current. The power converter is directly coupled to the one-wire bus line and converts the input data signal into the supply voltage. A switching regulator, also connected to the bus line, further regulates this supply voltage to ensure consistent charge current output. The switching regulator is switchable, allowing it to dynamically generate the charge current from the input data signal as needed. This design enables efficient power management while maintaining reliable data communication over the one-wire bus, making it suitable for applications requiring minimal wiring and low-power operation. The system ensures that power and data signals are processed without interference, optimizing performance in constrained environments.
3. The bus interface system of claim 2 wherein the power converter includes a reservoir capacitor and wherein: the power converter is configured to charge the reservoir capacitor with the first input data signal and block discharge from the reservoir capacitor so that the first supply voltage is generated by the reservoir capacitor; and the switching regulator is configured to charge the reservoir capacitor with the charge current such that the first supply voltage is regulated by the charge current.
A bus interface system is designed to manage power distribution in electronic circuits, particularly for high-speed data transmission. The system addresses the challenge of maintaining stable power supply voltages while efficiently handling varying data signals. The system includes a power converter and a switching regulator. The power converter receives a first input data signal and generates a first supply voltage using a reservoir capacitor. The power converter charges the reservoir capacitor with the first input data signal and prevents discharge, ensuring the first supply voltage is derived solely from the capacitor. The switching regulator provides a charge current to the reservoir capacitor, regulating the first supply voltage by controlling the charge current. This dual-stage approach ensures stable power delivery while accommodating fluctuations in the input data signal. The system is particularly useful in applications requiring precise voltage regulation and efficient power management, such as high-speed communication interfaces.
4. The bus interface system of claim 3 wherein the switching regulator comprises a switch regulated capacitive flyback converter switchable to generate the charge current by storing and releasing charge from the first input data signal provided in a charging state, wherein the switch regulated capacitive flyback converter is enabled to generate a pulsed charge current in response to the first supply voltage drooping below a voltage level of the first input data signal and is configured to disable the pulsed charge current in response to the first supply voltage exceeding the voltage level of the first input data signal.
A bus interface system addresses power management challenges in high-speed data transmission by dynamically regulating voltage levels to maintain signal integrity. The system includes a switching regulator that employs a switch-regulated capacitive flyback converter to generate a charge current for stabilizing the supply voltage. The converter operates by storing and releasing charge from an input data signal during a charging state. When the supply voltage drops below the voltage level of the input data signal, the converter activates to produce a pulsed charge current, compensating for the voltage droop. Conversely, when the supply voltage rises above the input data signal level, the pulsed charge current is deactivated to prevent overcharging. This adaptive regulation ensures efficient power delivery while minimizing energy loss, particularly in systems where voltage fluctuations could degrade signal quality or performance. The converter's design leverages capacitive flyback principles to achieve rapid response times, making it suitable for applications requiring precise voltage control in dynamic operating conditions. The system enhances reliability in data transmission by maintaining optimal voltage levels, reducing the risk of signal distortion or errors.
5. The bus interface system of claim 4 wherein the switch regulated capacitive flyback converter is operable to receive an oscillation signal, wherein the switch regulated capacitive flyback converter is configured to be switched by the oscillation signal so as to generate the pulsed charge current.
A bus interface system includes a switch-regulated capacitive flyback converter designed to manage power distribution in electronic systems. The system addresses the challenge of efficiently transferring power between different voltage domains while minimizing energy loss and maintaining stable operation. The capacitive flyback converter operates by receiving an oscillation signal, which controls the switching mechanism to generate a pulsed charge current. This pulsed current is used to charge a capacitive element, which then discharges to deliver power to a load. The oscillation signal determines the timing and duration of the switching events, ensuring precise control over the energy transfer process. The system may also include additional components, such as a voltage regulator or a current limiter, to further optimize performance and protect the circuit from overcurrent conditions. The overall design aims to improve power efficiency, reduce noise, and enhance reliability in bus interface applications.
6. The bus interface system of claim 3 wherein the switching regulator comprises a switch regulated capacitive flyback converter that includes a first switchable charging path and a first flyback capacitor wherein: the first switchable charging path is connected between the one-wire bus line and the reservoir capacitor, wherein the first switchable charging path is configured to unilaterally conduct charge towards the reservoir capacitor and the first switchable charging path is switchable to transmit charge from the one-wire bus line to the reservoir capacitor when the first switchable charging path is closed and block charge to the reservoir capacitor from the first flyback capacitor when the first switchable charging path is open; and the first flyback capacitor is coupled to the first switchable charging path so that charge from the first input data signal is stored by the first flyback capacitor when the first switchable charging path is open and wherein a first flyback capacitance of the first flyback capacitor is substantially less than a reservoir capacitance of the reservoir capacitor so that charge stored by the first flyback capacitor is released toward the reservoir capacitor when the first switchable charging path is closed.
A bus interface system for managing power and data transmission over a one-wire bus line includes a switching regulator designed to efficiently transfer charge from the bus line to a reservoir capacitor. The switching regulator employs a switch-regulated capacitive flyback converter, which consists of a first switchable charging path and a first flyback capacitor. The first switchable charging path is connected between the one-wire bus line and the reservoir capacitor and is configured to conduct charge unidirectionally toward the reservoir capacitor. When closed, this path allows charge from the bus line to flow into the reservoir capacitor, while when open, it blocks charge from the flyback capacitor. The first flyback capacitor is coupled to this charging path and stores charge from the input data signal when the path is open. The flyback capacitor has a significantly smaller capacitance than the reservoir capacitor, ensuring that stored charge is rapidly released into the reservoir capacitor when the path is closed. This design enables efficient energy transfer and regulation while maintaining data integrity over the one-wire bus. The system ensures stable power delivery and reliable communication by dynamically managing charge flow between the bus line and the reservoir capacitor.
7. The bus interface system of claim 6 wherein the switch regulated capacitive flyback converter further comprises a switch control regulation circuit operable to receive an oscillation signal, wherein: the switch control regulation circuit is configured to switch the first switchable charging path so that the charge current is generated as a pulsed charge current synchronized in accordance with the oscillation signal; and the switch control regulation circuit is enabled to switch the first switchable charging path in response to the first supply voltage drooping below the first input data signal in a charging state and is configured to disable the pulsed charge current in response to the pulsed charge current charging the reservoir capacitor so that the first supply voltage is approximately equal to the first input data signal in the charging state.
A bus interface system includes a switch regulated capacitive flyback converter with a switch control regulation circuit. The system operates in a technology domain where precise voltage regulation is needed for data transmission, particularly in scenarios where supply voltage fluctuations can degrade signal integrity. The problem addressed is maintaining stable voltage levels in the presence of varying input data signals, ensuring reliable communication. The switch regulated capacitive flyback converter includes a first switchable charging path that generates a charge current to a reservoir capacitor, which supplies a first supply voltage. The switch control regulation circuit receives an oscillation signal and synchronizes the charge current as a pulsed charge current with this signal. When the first supply voltage drops below the first input data signal during a charging state, the circuit activates the first switchable charging path to generate the pulsed charge current. Once the reservoir capacitor is charged to a level where the first supply voltage approximately matches the first input data signal, the circuit disables the pulsed charge current to prevent overcharging. This ensures efficient and stable voltage regulation, adapting dynamically to input signal variations. The system enhances bus interface performance by maintaining precise voltage levels, reducing signal distortion, and improving data transmission reliability.
8. The bus interface system of claim 6 wherein the switch regulated capacitive flyback converter further comprises a second switchable charging path and a second flyback capacitor wherein: the second switchable charging path is connected between the one-wire bus line and the reservoir capacitor, wherein the second switchable charging path is configured to unilaterally conduct charge towards the reservoir capacitor and the second switchable charging path is switchable to transmit charge from the one-wire bus line to the reservoir capacitor when the second switchable charging path is closed and block charge to the reservoir capacitor from the one-wire bus line when the second switchable charging path is open; and the second flyback capacitor is coupled to the second switchable charging path so that charge from the first input data signal is stored by the second flyback capacitor when the second switchable charging path is open and wherein a second flyback capacitance of the second flyback capacitor is substantially less than a reservoir capacitance of the reservoir capacitor so that charge stored by the second flyback capacitor is released toward the reservoir capacitor when the second switchable charging path is closed.
This invention relates to a bus interface system for managing power and data transmission in a one-wire bus communication system. The system addresses the challenge of efficiently transferring charge from a one-wire bus line to a reservoir capacitor while ensuring unidirectional charge flow and minimizing energy loss. The bus interface includes a switch-regulated capacitive flyback converter with a second switchable charging path and a second flyback capacitor. The second switchable charging path is connected between the one-wire bus line and the reservoir capacitor, allowing charge to flow toward the reservoir capacitor when closed and blocking reverse flow when open. The second flyback capacitor is coupled to this path, storing charge from the input data signal when the path is open. Due to its smaller capacitance compared to the reservoir capacitor, the stored charge is released to the reservoir capacitor when the path is closed. This design ensures efficient charge transfer while maintaining unidirectional flow, improving power management in one-wire bus systems. The system avoids backflow and optimizes energy storage, enhancing reliability and performance in low-power communication applications.
9. The bus interface system of claim 8 wherein the first flyback capacitance and the second flyback capacitance are approximately equal.
A bus interface system is designed to manage signal integrity and power distribution in high-speed data transmission systems, particularly where flyback capacitance affects signal quality. The system includes a first flyback capacitance and a second flyback capacitance, which are approximately equal in value. These capacitances are introduced to mitigate signal reflections and voltage fluctuations that can degrade performance in high-frequency communication channels. By balancing the flyback capacitances, the system ensures consistent signal transmission and reduces electromagnetic interference. The system may also include a termination network to further stabilize signal levels and a power distribution network to manage power delivery across the bus. The balanced flyback capacitances help maintain signal integrity by minimizing impedance mismatches and ensuring uniform signal propagation. This design is particularly useful in applications requiring precise timing and low noise, such as high-speed serial data links or memory interfaces. The system may also incorporate adaptive tuning mechanisms to dynamically adjust capacitance values based on operating conditions, enhancing overall reliability. The balanced flyback capacitances are a key feature in optimizing signal quality and reducing power loss in high-speed bus interfaces.
10. The bus interface system of claim 8 wherein the switch regulated capacitive flyback converter further comprises a switch control regulation circuit operable to receive an oscillation signal, wherein: the switch control regulation circuit is configured to switch the first switchable charging path and the second switchable charging path so that the charge current is generated as a pulsed charge current synchronized in accordance with the oscillation signal; and the switch control regulation circuit is enabled to switch the first switchable charging path and the second switchable charging path in response to the first supply voltage drooping below the first input data signal in a charging state and is configured to disable the pulsed charge current in response to the pulsed charge current charging the reservoir capacitor so that the first supply voltage is approximately equal to the first input data signal in the charging state.
A bus interface system includes a switch regulated capacitive flyback converter designed to manage power delivery in data communication systems. The converter addresses the challenge of maintaining stable voltage levels during data transmission, particularly when input data signals fluctuate. The system features a switch control regulation circuit that receives an oscillation signal to synchronize charge current generation. This circuit switches between two charging paths to produce a pulsed charge current aligned with the oscillation signal. When the supply voltage drops below the input data signal during charging, the circuit activates the charging paths to generate the pulsed current. Once the reservoir capacitor is sufficiently charged, bringing the supply voltage close to the input data signal level, the circuit disables the pulsed charge current to prevent overcharging. This dynamic regulation ensures efficient power delivery while maintaining voltage stability, which is critical for reliable data transmission in high-speed interfaces. The system optimizes energy transfer by synchronizing charging operations with the oscillation signal, reducing power loss and improving overall system efficiency.
11. The bus interface system of claim 10 wherein the switch control regulation circuit is configured to switch the first switchable charging path and the second switchable charging path in accordance with the oscillation signal so that the first switchable charging path is opened while the second switchable charging path is closed and so that the second switchable charging path is opened while the first switchable charging path is closed.
This invention relates to a bus interface system designed to manage power distribution and charging paths in electronic devices. The system addresses the challenge of efficiently regulating power flow between different components, particularly in scenarios where multiple charging paths must be controlled to prevent conflicts or inefficiencies. The system includes a switch control regulation circuit that governs two switchable charging paths. These paths are configured to alternate between open and closed states in response to an oscillation signal. When the first charging path is open, the second charging path is closed, and vice versa. This alternating control ensures that power is directed appropriately without overlapping or conflicting currents, optimizing energy distribution and preventing potential damage to connected components. The switch control regulation circuit dynamically adjusts the states of the charging paths based on the oscillation signal, which may be generated by an external or internal timing mechanism. This synchronization allows for precise timing of power delivery, enhancing system reliability and performance. The system is particularly useful in applications requiring controlled power switching, such as in battery management, power distribution networks, or electronic devices with multiple power sources. By ensuring that only one charging path is active at any given time, the system minimizes power loss and improves overall efficiency.
12. The bus interface system of claim 3 wherein the switching regulator comprises a switch converter and a linear voltage regulation circuit wherein: the switch converter is coupled to the one-wire bus line, wherein the switch converter is switchable so as to generate a charging voltage from the first input data signal; and the linear voltage regulation circuit is configured to generate the charge current from the charging voltage so that the charge current drives a first supply voltage level of the first supply voltage to a first target voltage level.
A bus interface system is designed to manage power and data transmission over a one-wire bus line, addressing challenges in efficient power delivery and signal integrity. The system includes a switching regulator that combines a switch converter and a linear voltage regulation circuit. The switch converter is directly coupled to the one-wire bus line and operates to generate a charging voltage from the input data signal. This charging voltage is then processed by the linear voltage regulation circuit, which converts it into a controlled charge current. The charge current is used to drive a first supply voltage to a specific target voltage level, ensuring stable power delivery to connected devices. The switching regulator's dual-stage design allows for efficient power conversion while maintaining precise voltage regulation, improving energy efficiency and reliability in one-wire bus applications. This approach is particularly useful in low-power systems where both data transmission and power delivery must be managed over a single communication line.
13. The bus interface system of claim 12 wherein the switch converter is a switched capacitive voltage converter.
A bus interface system is designed to manage power distribution and conversion in electronic devices, particularly addressing inefficiencies in voltage regulation and power delivery. The system includes a switch converter that efficiently converts input voltage to a desired output voltage for powering various components. In this configuration, the switch converter is specifically implemented as a switched capacitive voltage converter, which uses capacitors to transfer charge between input and output stages, enabling high efficiency and compact design. This approach reduces power loss compared to traditional linear regulators or inductive converters, making it suitable for applications requiring low power consumption and high energy efficiency. The system may also include additional features such as voltage regulation, current limiting, and protection mechanisms to ensure stable and safe operation. By integrating a switched capacitive voltage converter, the bus interface system provides a scalable and adaptable solution for power management in modern electronic devices.
14. The bus interface system of claim 13 wherein the switched capacitive voltage converter is a switched capacitive voltage multiplier.
A bus interface system includes a switched capacitive voltage converter that operates as a voltage multiplier. The system is designed for electronic devices requiring efficient voltage conversion, particularly in applications where power efficiency and compact size are critical. The switched capacitive voltage multiplier converts an input voltage to a higher output voltage using a network of capacitors and switches. The capacitors are charged and discharged in a controlled sequence to multiply the input voltage, providing a stepped-up output voltage. This approach avoids the need for bulky transformers or inductors, reducing size and weight while maintaining high efficiency. The system may be integrated into power management circuits for portable electronics, battery-powered devices, or other applications where space and energy efficiency are priorities. The voltage multiplier can be configured to operate in different modes, such as doubling, tripling, or further multiplying the input voltage, depending on the specific requirements of the application. The design ensures minimal power loss during conversion, making it suitable for low-power and high-performance systems. The system may also include additional components, such as control logic or feedback mechanisms, to regulate the output voltage and ensure stable operation under varying load conditions.
15. The bus interface system of claim 13 wherein the switched capacitive voltage converter is a charge pump.
A bus interface system includes a switched capacitive voltage converter that operates as a charge pump to regulate voltage levels between a host device and a peripheral device. The charge pump converts an input voltage to a different output voltage using switched capacitors, enabling efficient voltage conversion without inductive components. This system is particularly useful in low-power applications where space and energy efficiency are critical, such as in portable electronics or embedded systems. The charge pump may be configured to step up or step down the voltage depending on the requirements of the connected devices, ensuring compatibility and stable power delivery. By integrating the charge pump within the bus interface, the system reduces the need for external voltage regulators, simplifying design and improving reliability. The charge pump may also include control circuitry to dynamically adjust the conversion ratio based on load conditions, optimizing performance and energy efficiency. This approach enhances the versatility and efficiency of the bus interface, making it suitable for a wide range of electronic applications.
16. The bus interface system of claim 12 wherein the linear voltage regulation circuit is configured to generate the charge current from the charging voltage so that the charge current drives the first supply voltage level to the first target voltage level in response to the first supply voltage level drooping below the first target voltage level.
This invention relates to a bus interface system designed to manage power delivery in electronic circuits, particularly addressing voltage droop issues in supply voltages. The system includes a linear voltage regulation circuit that generates a charge current from a charging voltage to stabilize a first supply voltage level. When the first supply voltage level drops below a first target voltage level, the charge current adjusts the supply voltage back to the target level, preventing performance degradation or system failures due to insufficient voltage. The linear voltage regulation circuit operates dynamically to ensure the supply voltage remains within acceptable limits, enhancing system reliability. The system may also include additional components, such as a second supply voltage level and corresponding target voltage level, where similar regulation is applied to maintain stable operation. The invention is particularly useful in high-performance or power-sensitive applications where voltage stability is critical. The linear voltage regulation circuit provides a controlled response to voltage fluctuations, ensuring efficient and reliable power delivery.
17. The bus interface system of claim 16 wherein the linear voltage regulation circuit is configured to block charge from the switch converter so that the first supply voltage level is prevented from being overcharged above the first target voltage level.
A bus interface system includes a linear voltage regulation circuit and a switch converter for managing power distribution. The system addresses the problem of overcharging a supply voltage level when multiple power sources are connected to a bus. The linear voltage regulation circuit is designed to block charge from the switch converter, ensuring that the first supply voltage level does not exceed a predefined first target voltage level. This prevents overcharging and maintains stable voltage regulation. The switch converter operates to convert an input voltage to a regulated output voltage, while the linear voltage regulation circuit provides additional control to manage the voltage levels. The system ensures efficient power distribution and protection against voltage spikes or overcharging, which is critical in applications requiring precise voltage control. The linear voltage regulation circuit acts as a safeguard, dynamically adjusting to block excess charge from the switch converter when necessary. This configuration enhances reliability and performance in electronic devices where stable power supply is essential.
18. The bus interface system of claim 12 wherein the switch converter is switchable so as to commutate the first input data signal to generate the charging voltage and the linear voltage regulation circuit is operably associated with the switch converter such that the linear voltage regulation circuit is configured to generate the charge current as a pulsed charge current.
A bus interface system is designed to manage power delivery in electronic devices, particularly for charging applications. The system addresses the challenge of efficiently converting and regulating power from an input source to provide a stable charging voltage and current to a load, such as a battery. The system includes a switch converter that commutates an input data signal to generate a charging voltage. The switch converter is switchable, allowing it to dynamically adjust the output voltage as needed. A linear voltage regulation circuit is operably connected to the switch converter and is configured to generate a charge current, specifically in the form of a pulsed charge current. This pulsed charge current helps optimize charging efficiency and reduce power losses. The linear voltage regulation circuit works in conjunction with the switch converter to ensure precise control over the charging process, adapting to varying load conditions while maintaining stability. The system is particularly useful in applications where power efficiency and dynamic response are critical, such as in portable electronics and battery-powered devices.
19. The bus interface system of claim 12 wherein the slave bus controller further comprises an oscillator wherein: the oscillator is configured to generate an oscillation signal when activated and not generate the oscillation signal when deactivated, the oscillator is configured to be activated in response to the first input data signal being in a charging state and is configured to be deactivated in response to the first input data signal being in a discharging state; and the switch converter is switched to commutate the first input data signal based on the oscillation signal from the oscillator.
A bus interface system includes a slave bus controller with an oscillator that generates an oscillation signal when activated and ceases signal generation when deactivated. The oscillator activates in response to a first input data signal entering a charging state and deactivates when the signal transitions to a discharging state. The system also includes a switch converter that commutates the first input data signal based on the oscillation signal from the oscillator. This configuration allows the oscillator to dynamically adjust its operation based on the state of the input data signal, optimizing power efficiency and performance. The slave bus controller manages data transfer operations, ensuring proper synchronization and signal processing. The switch converter facilitates efficient power conversion by modulating the input data signal in response to the oscillator's output, enabling precise control over signal commutation. This design improves energy efficiency and reduces unnecessary power consumption by activating the oscillator only when needed, based on the input signal's state. The system is particularly useful in applications requiring low-power operation and dynamic signal management.
20. The bus interface system of claim 19 wherein the switch converter is switchable so as to commutate charge from the first input data signal and the linear voltage regulation circuit is operably associated with the switch converter such that the linear voltage regulation circuit is configured to generate the charge current as a pulsed charge current synchronized in accordance with the oscillation signal.
A bus interface system is designed to manage power delivery and signal processing in electronic devices, particularly addressing challenges in efficient power conversion and signal integrity. The system includes a switch converter and a linear voltage regulation circuit. The switch converter is configured to commutate charge from an input data signal, effectively converting the input signal into a controlled charge transfer. The linear voltage regulation circuit is operably connected to the switch converter and is designed to generate a pulsed charge current. This pulsed charge current is synchronized with an oscillation signal, ensuring precise timing and coordination between the switch converter and the linear voltage regulation circuit. The synchronization of the pulsed charge current with the oscillation signal optimizes power efficiency and signal quality, reducing losses and improving performance in data transmission and power management applications. The system is particularly useful in high-speed communication interfaces and power delivery networks where efficient charge transfer and signal synchronization are critical.
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March 3, 2020
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